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Page — 18

1501 Manual

Figure 3

Oven Scanning

switch to the “SLOW” position. Return to the

spot where you noticed the highest reading

before.

Hold the probe in place over the spot for at least

five seconds and watch for the highest needle

indication. The needle will move slower and not

go quite as high as it did in the “FAST” position.

The reading you obtain is the maximum leakage

of your oven.

Check the zero after each measurement. If a

shift in the zero is observed, the meter will be

rezeroed and the measurement repeated.

Turn the selector switch to OFF when the meter

is not in use.

Содержание HI-1501

Страница 2: ......

Страница 3: ...Revision Record Manual 600010 HIn1501 Microwave Survey Meter Revision Description Date Release 2 90 A Revised Reformatted 3 99 ...

Страница 4: ......

Страница 5: ...t 7 Spacer Cone Replacement 7 Recalibration Service 8 Service Centers 8 Return Procedures 8 3 0 HI 1501 SPECIFICATIONS 11 4 0 ACCEPTANCE 13 Introduction 13 Unpacking and Acceptance 13 5 0 GETTING READY 15 Introduction 15 Preparing the Oven 15 Preparing the Meter 16 6 0 MAKING THE MEASUREMENT 17 Introduction 17 7 0 WHAT THE MEASUREMENT MEANS 19 Introduction 19 ...

Страница 6: ......

Страница 7: ...vice or abnormal conditions of operation repairs will be billed at a nominal cost In such cases an estimate will be provided before work is started if requested by the purchaser For warranty service contact Holaday Industries Inc Provide the serial number of the instrument and complete details regarding the failure mode You will then be given either service information or shipping instructions Ret...

Страница 8: ......

Страница 9: ...adiological Health FDA CDRH for compliance testing of microwave ovens and to all major microwave oven manufacturers for testing ovens in use and after repair This easy to use meter and the step by step instructions in this manual will enable you to easily and accurately measure leakage from your microwave oven This manual is divided into six sections 1 About the HI 1501 2 Specifications 3 Acceptan...

Страница 10: ...Page 2 HIn1501 Manual Figure 1 HI 1501 Microwave Survey Meter ...

Страница 11: ...the instrument easy to use when measuring leakage around an oven door The spacer cone is designed to provide a 5 cm spacing from the tip of the probe to the center of the array Each detection probe and meter amplifier is calibrated as a unit and serves all three ranges 2 10 and 100 mW cm2 Only the 2 and 10 mW cm2 ranges are considered compliance ranges in terms of compliance with the DHHS CDRH sta...

Страница 12: ...Page 4 HIn1501 Manual Figure 2 HI 1501 Front Panel ...

Страница 13: ...e the condition of the batteries must be checked by rotating the selector switch to the BATT TEST position at least once every 15 minutes 3 The normal operating temperature range is between 60 and 90 F If used outside this range an additional error will be introduced This error can be approximated as 0 14 per Fahrenheit degree The negative temperature coefficient means that the instrument reads hi...

Страница 14: ...meter is calibrated by placing the probe in a CW continuous wave 2450 MHZ electromagnetic field generated by a crystal controlled solid state source The source feeds an anechoic chamber through a section of waveguide terminating in a slot radiator Calibration is performed at a level of 1 mW cm2 and a standard temperature of 75 F The calibration is also checked at 5 mW cm2 The accuracy of the field...

Страница 15: ...es at the same time Any nine 9 volt alkaline or the optional rechargeable NiCad battery may be used Replace batteries and reinsert the meter assembly into the cover being careful to not crimp the battery wires between the front panel and the cover After replacement turn the selector switch to BATT TEST If the meter does not immediately indicate full scale check the condition of each battery to ass...

Страница 16: ...lent Recalibration Service It is recommended that the HI 1501 be recalibrated every 12 months Holaday Industries Inc will recalibrate and repair any damaged instrument for a nominal charge The calibration fee will be quoted on request Service Centers Holaday Industries Inc has established factory authorized repair and recalibration centers in the US and the UK If your microwave survey meter requir...

Страница 17: ...ide the date s the name of the service representative you spoke with and the nature of the conversation Include the serial number of the item Step 2 Package the probe carefully Return the product using the original boxes and packing materials if possible to Holaday Industries Inc Attn Service Department 14825 Martin Drive Eden Prairie MN USA 55344 ...

Страница 18: ...Page 10 HIn1501 Manual ...

Страница 19: ...nge 0 100 mW cm2 Accuracy 1 dB Response Time 2 3 seconds SLOW 1 second FAST Overload Capacity Continuous 2000 mW cm2 Dimensions 2 09 in 5 3 cm x 2 68 in 6 8 cm x 4 13 in 10 5 cm Probe Length 12 00 in 30 5 cm Cable Length 3 3 ft 1 0 m Spacer 1 97 in 5 cm EPS Expanded Polystyrene Styrofoam ...

Страница 20: ...Page 12 HIn1501 Manual ...

Страница 21: ...r loss retain the packing materials for inspection by the carrier Step 2 Remove the product from its shipping containers Save the boxes and any protective packing materials for future use Step 3 Check all materials against the packing list to verify that the equipment received matches that which was ordered If you find any discrepancies note them and call Holaday Customer Service for further instr...

Страница 22: ...Page 14 HIn1501 Manual ...

Страница 23: ...the oven is clean and that there is no buildup of dirt around the door seal area 2 Inspect the door and sealing surfaces the hinge and the latch for damage or a loose fit 3 If the oven has a variable power control or a defrost setting make sure it is set for full power 4 In order to make an accurate leakage measurement you must use the specified water load Fill the beaker to a level of 275 mL with...

Страница 24: ...ack to page 8 3 Turn the selector switch to the PROBE TEST position The needle should indicate between the green OK PROBE TEST lines If not the probe or meter circuits have been damaged and should not be used A defective probe cannot be replaced in the field and the complete unit should be returned to the factory for repair 4 Turn the selector switch to the desired scale usually the 2 mW scale and...

Страница 25: ...RF pickup directly from the oven to the meter case 3 Move the probe slowly about one inch per second keeping the cone tip in contact with the oven and the probe handle straight 4 The areas where leakage is likely to occur are around the door seal the window and at ventilation louvers or vents A damaged or improperly installed magnetron mounting gasket may cause leakage in the control panel area of...

Страница 26: ...five seconds and watch for the highest needle indication The needle will move slower and not go quite as high as it did in the FAST position The reading you obtain is the maximum leakage of your oven 8 Check the zero after each measurement If a shift in the zero is observed the meter will be rezeroed and the measurement repeated 9 Turn the selector switch to OFF when the meter is not in use ...

Страница 27: ...use today often have leakage values in the 0 1 to 0 4 mW cm2 range usually less than 0 6 when received from the manufacturer If the oven leakage exceeds 5 mW cm2 you should contact a service agency recommended by the oven manufacturer or contact the manufacturer directly This oven must be repaired to comply with the CDRH safety guidelines You may wish to write down for future reference the leakage...

Страница 28: ...Page 20 HIn1501 Manual NOTES ...

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